Radiator



H. JAFFE RADIATOR Dec. 29 1925- 1,567,845

Filed Dec. 31 1920 2 Sheets-Sheet 1 1,567,845 H; JAFFE 1 RADIATOR File Dec. 31, 1920 2 sheets-sheet 2 Dec. 29 1.925-

-P'atented Dec. 29, 1925.

UNITED sTATlazs HARRY' JArFn, OF CHICAGO, ILLINOIS, AssioNoR, By' ivr'sN'AssIoNIinNTs, ToJ

PATENT OFFICE?.

Mcooan RADIATOR a' M FG. CO., or DETROIT, MICHIGAN, A' CORPORATION orv MAINE.

RAJIATOR:

Application filed December 31, 1920.'y Serial No. 434,235.

ToaZZ whom t may concern:

Be it known that I, HARRY JAFFE, a citi-L zen of the-United States, and a resident lof Chicago, infthe county of Cook' and State of illinois, have invented certain new 'and'usel ful Improvements in a Radiator, of `which the 4following is a specification;

My invention relates to 'improvements in radiators for the water cooling lsystems off automobiles. Thev object of my invention is to provide a radiator which shall tbe more easily and cheaply constructed than hereto` fore; and which shall 'be lighter in'weight and of equal or greater water cooling capacity.

A further object of my invention vis to provide a construction whereby the quantity of sheet metal used in a radiator of specified dimensions is greatly reduced; in which the parts are more durable; in which the assembly of Vparts and the manufacture 1s easier; in which the yconstructiongenerally is simplified andimproved; and which shall reduce the quantity of water required.

invention will be -`more readily understood by reference to the accompanying drawings formingipart of this specification and in which y Figure 'l is a fragmentary front elevation of an automobile radiator made in accordance with my invention;

Figure 2y is an enlarged fragmentary front elevation showing in more detail-thecom structionof the radiator;

Figure 3 is a vertical transverse sectional viewof the radiator, particularly showingthe parallel vertical water passages andthe intermediate air passages and their con.

struction;

Figure 4 is a fragmentary side elevation of one of the side walls of they water passages;

Figure 5 is a fragmentary perspective view of said side wall;

Figure 6 is a fragmentary Side elevation of one of the folded intermediate spacer strips with which the` air passages are produced;

Figure 7 is a fragmentary perspective view of the stripl shown in Figure V6;

Figure v8 is a horizontal sectional view :on the line. 8-8 of Figure 3;

Figure 9 is'an' end-'elevationi of the/spacer stripshown in Figure 7 g Figure 10 is ja fragment-ary. perspective f View 'of :an intermediate divisioni-strip yand Figure l1 is a similar view "of a modified form of the'stripshownin FigurelOi My improved radiator: is of thethoney? combl type being 'providedwith hexagonal shaped nestedl air passages `1' extending through from the front '-to' the "back of the radiator and'provided with verticaly'exf' tending' water passages?,l through which the water to be cooled 'falls' from the, top Asection 4 to the bottom section 3. The water passages 2 are quite narrow transversely and 'are-Zig-zagged1 vertical-ly to' reduce the speedv of flowing water therethrough and the hexagonalair passages are builtup or made of strips of quite thin sheet metal bent and yformed to nest togetherto produce the nested hexagonal openings best shown in Figure 1. i

Instead of arranging sin'glefolded spacer strip between adjacent water .pas` sages, as"il1ustrated in my'United States Patent No. 1,310,416,11 spread the water passages apart far enoughv toprovi'de twin rows of air passages between adjacent vertical water passages'and in a given dimension transversely of radiator surface, Ilreduce the quantity of metal usedby r quite a large percentage, thus reducing the cost of the material of Vwhich the radiator' is made and proportionately reducing `the laloor cost. Inmy former `construction between each vertical row ofhexagonal cells I provided a double walled water passage.v In' the present construction in the place of each alternate'water passage I provide a single thickness division strip which is a simple Zigfz'ag strip such as is illustrated in Figure 10, or in slightly modified form 1n Figure 11; in other words in my present imL proved construction'I eliminate one vertical strip in each 5% transverse width of the radiator. Y

ln my improved construction, while the elimination of each alternate water passage reduces the area of passages through'which the Water can' iiow vertically through the radiator, I find that the additional aircontact-ing surfaces vwhich I provide"forv the water passages is sufficient to increase the radiating capacity and maintain equally good results in the cooling capacity of the radiator of equal dimensions with the forni shown in my said patent.

In building up my improved radiator I take a' strip of sheet metal which is wide enough to extend from the front to the rear face of the radiator and I corrugate or bend this sheet back and forth transversely to forni V-shaped corrugations as shown at 6 in Figures 4 and 5, offsetting the edges of the apexes 7 at their ends as shown at 8 to contact with the intermediate apexes 8 of an adjacent strip 5, to close the lateral edges of the water passages 2 as best shown in Figure 8.

These strips 5 are made continuous and in building the radiator I usually make a strip 5 continuous from the lower end of one water passage to the lower end of the adjacent water passage, as best shown in Figure 3, wherein the strip 5 is shown as extending on an incline from the inner side of one side of one water passage to the adjacent side of the next adjacent water passage, the incline being suiicient to. bring the alternate apexes of the corrugations of the strips 5 into horizontal alignment and thus begin the production of the nested parallel rows of hexagonal air passages between the two adjacent vertical lwater passages. t Having bent a strip 5 back upon itself as best shown in Figure 3, to produce the adjacent sides of two adjacent water passages, I next proceed to bend other strips to be assembled therewith to complete the water passages and complete the adjacent portions of the radiator. To properly space the adjacent side walls of adjacent water passages, which I will now designate as 9 and 10 (see Figure 3) I provide two forms of filler or spacer strips, one of these strips being vshown in Figures 6, 7 and 9. This spacer strip 11 is produced out of a strip of thin sheet metal of a width to reach from the front to the rear face of the radiator and is bent transversely to provide horizontal division walls 12 to form i the top and bottoni walls of the hexagonal air passages 1 and to provide Vshaped walls 13 projecting outwardly from the horizontal walls 12 in opposite direct-ions between adjacentwalls 12 as best shown in Figure 7, and adapted to fit into the V- shaped grooves in the sides of the adjacent water passages, that is, against the walls 9 and 10, as best shown in Figure 3. Before bending the strips 11 into the form shown in Figure 7 I make incisions or cuts 13 in the strip, parallel with the side edges thereof and approximately one third of the width of the strip from each edge and extending froin edge to edge of the adjacent parts of the strip which produce the horizontal walls 12. These cuts produce a portion 14 of the strip which is free at its transverse ends and is still joined to the strip at its edges as best shown in Figure 7, and in forming the strip 11 into the shape illustrated in Figure 7 I foi'm""the part 14 inwardly instead of outwardly as illustrated at 15 and as best shown in Figure9`." "These inwardly projecting parts 14 provide intermediate walls 16 in the air passages which tend to divide and cut up the air streams flowing through the hexagonal air passages and force them into close contact with the sides of the water passages,'which are in a sense uncovered by the inwardly projecting parts 14.

In building up my radiator I make usey of two of the stripsll between each pair of vertical water passages, as best illustrated in Figure 3 and I provide an intermediate division wall 17 with which the opposed sides of these two spacer strips are adapted to contact, which wall 17 is arranged mid` way between adjacent water passages.

In producing the wall 17 I take a strip of sheet metal of a width equal to the other strips and I form it into a V-shaped corrugated sheet by corrugations 18 running transversely thereof, as best shown in Figure 10, and of a size to nest with the spacer strips and cause them to produce the hexagonal openings shown in Figure 1. This thin division strip is very easily and cheaply produced and as far as the spacer strips 11 are concerned, takes the place of a water passage iii causing the corrugations of the spacer strips to properly register and produce the regular hexagonal holes or air pas sages desired.

For the purpose of reducing the weight of the radiator I provide deep V-notches 19 in the edges of the spacer strips 11 which are so arranged that when the strip is folded up the V-walls 14 are cut away at their ends at best shown in Figure 11, and I thus avoid the necessity of causing these walls to closely Contact with the inwardly'inclined ends 8 of the side walls of the water passages.y

It is well understood that in the building of such radiators as the one to which my invention appertains, the various strips are arranged together in nested form as shown in Figure 1, and then the whole body of the radiator is clamped transversely tightly together and in such clamped condition the front and the rear surfaces of the radiator is dipped into melted solder to close the transverse ends of the water passages and solidify the variousstrips into a unitary whole. It is also understood that Where two sheets of metal are in contact at the point where they are soldered, the solder not lonly enters in between the two sheets, but also coats the outer surfaces thereof, and that the larger percentage of joints there are which are presented to take up solder, the greater the percentage of solder which is absorbed in the joints and on the edges of the sheets.

By the elimination of the intermediate water passage in the construction of my novel radiator and the introduction in the place thereof of a single corrugated division sheet, I have greatly reduced the quantity of solder which is necessary for the production of the radiator.

Another feature which reduces the quantity of solder is the large V-shaped notches 18 which I provide in the edges of this sheet and the edges of the sides of the water passage and the edges of the division sheet 17.

For the purpose of causing the spacer strips to more readily and definitely register with the divisional strip 17 I sometimes produce shallow grooves Q0, see Figure 11, in the apeXes of the corrugations of the division strip to receive the slim sharp ends 2l formed on the edges of the spacer strips between the deep notches 19.

As it is obvious that many details of construction can be changed or modified withf out departing from my invention, I do not limit or confine my invention to the specic details of construction herein shown and described.

I claim:

In a radiator' of the kind described, thin walled vertical corrugated water passages, the water passages spaced apart by two substantially similar spaced strips and an intermediate divisional'strip, the spacer strips Jformed to provi-de horizontal top and bottom walls for hexagonal air passages, the alternate vertical connecting walls deflected i to nest with the water walls and the other connecting walls deflected to nest 'with the divisional strip, the opposed apeXes of the two spacer strips spaced apart vertically midway of each other, the divisional strip formed to cooperate with the spacer strips to complete two vertical lines of hexagonal air passagesbetween each two Water passages and arranged to extend diagonally from the apeXes of one spacer strip to the apexes of the opposed spacer strip, the apeXes of the divisional strip being grooved to receive the edges of the apeXes of the spacer strips to retain said parts in their relative positions.

Signed at Chicago, Illinois, this 24th day of December, 1920.

HARRY J AFFE. 

